Automate the Boring Stuff Chpt 5 - Fantasy Game Inventory

FantasyGameInventory.py

stuff = {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}

#def displayInventory(inventory):
#    total_items = 0
#    for item in inventory:
#        print(str(inventory[item])+' '+item)
#        total_items += inventory[item]
#    print("Total number of items: "+str(total_items))
# This worked but I like the following better:

def displayInventory(inventory):
    total_items = 0
    for item, quantity in inventory.items():
        print(str(quantity)+' '+item)
        total_items += quantity
    print("Total number of items: "+str(total_items))


displayInventory(stuff)


def addToInventory(inventory, addedItems):
    for item in addedItems:
        inventory.setdefault(item, 0) #this adds a (defaulted to zero value) key to the inventory dict if it's not already there
        inventory[item] += 1 #and this increases that value by one, each time that item appears in the loot list
    return inventory

inv = {'gold coin': 42, 'rope': 1}
displayInventory(inv)
dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']
inv = addToInventory(inv, dragonLoot)
displayInventory(inv)

When I run this code, I'm only getting 43 coins, rather than 45.

When I run this code, I'm only getting 43 coins, rather than 45.

I haven't touched this in awhile (I'd probably be using f-strings if I did), but when I copy it in to a repl.it instance and run it, I don't get 43 coins...anywhere in the output?

`stuff = {'rope': 1, 'torch': 6, 'gold chain': 42, 'dagger': 1, 'arrow': 12}
def displayInventory(inventory):
print('Inventory:')
item_total = 0
for k, v in inventory.items():
print(v, k)
item_total = item_total + v

 print('Total number of items: ' + str(item_total))

displayInventory(stuff)`

When I run this code, I'm only getting 43 coins, rather than 45.

Try adjusting: inventory[item]=inventory[item] + 1.

When I run this code, I'm only getting 43 coins, rather than 45.

Try adjusting: inventory[item]=inventory[item] + 1.

That is what inventory[item] += 1 does, except you don't have to repeat (and potentially misspell) inventory[item]

When I run this code, I'm only getting 43 coins, rather than 45.

Try adjusting: inventory[item]=inventory[item] + 1.

That is what inventory[item] += 1 does, except you don't have to repeat (and potentially misspell) inventory[item]

I had the same problem counting the coins, then I realized I nested return inventory in the for loop. I placed it after the for loop and now it works fine.

Hi,

This is what I have with the latest Python version 3.9.1:

def addToInventory(item, number):
empty = {}
for z in number:
for i, k in item.items():
if i == z:
item[i] = k + 1
else:
empty[z] = 0
finalDict = empty | item
print(finalDict)

inv = {"gold coin": 42, "rope": 1}

dragonLoot = ["gold coin", "dagger", "gold coin", "gold coin", "ruby"]

addToInventory(inv, dragonLoot)

Edit: not sure how to tab it.

@Villus28 you use spaces. :) 4 spaces is convention in python, and people prefer spaces to tabs.

Thank you very much 🗡️ I'm having hard time to figure it out.

Thank you very much dagger I'm having hard time to figure it out.

Thanks man, you are clever!

I just want to share my code on how I solve this exercise :)

`inventory = {'gold coin': 42, 'rope': 1}
dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']

def addInventory(inventory, loots):
for loot in loots:
addedQty = 0
if loot in inventory.keys():
addedQty += 1
inventory[loot] += addedQty
else:
inventory.setdefault(loot, 1)
return inventory

def displayInventory(inventory):
total = 0
for key, value in inventory.items():
print(str(value) + ' ' + key)
total += value
print('Total number of items: ' + str(total))
displayInventory(addInventory(inventory, dragonLoot))`

thank you <3

thank you!
I was having a hard time with the second part of the code.